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Showing posts from May, 2016

Access Apache Spark Web UI when cluster is running on closed port server machines

When you have a Apache spark cluster running on a server were ports are closed you cannot simply access the Spark master web UI by localhost:8080. The solution to this is to use SSH Tunnels. Which is pretty straight forward.

Note: You can checkout my blog post on how to setup a Spark standalone cluster locally  (The steps are pretty much the same when you are setting it up on a server) - How to set up a Apache Spark cluster in your local machine

Scenario 1:

The first most basic scenario would be if you have direct ssh access to the server where the Apache spark master is running on. The all you have to do is run the following command in a terminal window on your local machine ( Laptop or desktop that you use) after you start the master in the server machine.

$ ssh -L 8080:localhost:8080 username@your.server.name
Once you have run this command you can access the Spark Web UI by simply going to "http://localhost:8080/" on your web browser. Likewise you might want to create S…